[quote=@Kafka Komedy]
He mentioned that he didn't actually have an idea. I assume, unless stated otherwise (I.E. Batman and Scarecrow), that nobody on the team has met before. If so, I would suggest a B-villain, with access to mooks and cronies.
[/quote]

Ding, give this man a prize!

But yeah anyone have a B-lister villain they'd be interested in using for this?  That is Marvel or DC based of course.